2W9C

Ternary complex of Dpo4 bound to N2,N2-dimethyl-deoxyguanosine modified DNA with incoming dTTP

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2ASD	PDB ENTRY 2ASD

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.4		DPO4:DNA COMPLEX (1:1.2 MOLAR RATIO, 150 MICROMOLAR), 20 MM TRIS HCL (PH 7.4), 15% POLYETHYLENE GLYCOL 3350 (W/V), 60 MM SODIUM CHLORIDE, 5 MM MAGNESIUM CHLORIDE, 1 MM DTTP.

Crystal Properties
Matthews coefficient	Solvent content
2.4	52.83

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.707	α = 90
b = 101.622	β = 92.29
c = 96.753	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	CCD	MARRESEARCH	MIRRORS	2008-07-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F		APS	21-ID-F

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.87	28.33	97.3	0.09	12.3	3.4		20782			37.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.87	3.05	79.7		0.31	4.2	7.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 2ASD	2.9	28.33	1055	97.3	0.252	0.252	0.288	RANDOM	51.9

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-10.01		-0.21	-19.45		29.46

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	24.1
c_scangle_it	2.49
c_mcangle_it	1.94
c_angle_deg	1.6
c_scbond_it	1.58
c_improper_angle_d	1.27
c_mcbond_it	1.13
c_bond_d	0.01
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5490
Nucleic Acid Atoms	1180
Solvent Atoms	109
Heterogen Atoms	64

Software

Software
Software Name	Purpose
CNS	refinement
XDS	data reduction
XDS	data scaling
MOLREP	phasing